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I've installed a Ubuntu 12.04 with Windows 7. At the very beginning it worked perfectly and raised no problems. I installed the 3rd party updates also while installing the OS. So the MP3 and videos are working perfectly.

But a day later, a big core problem is raised on my system. If I opened the Ubuntu Software-Center, it just opens and the animated wheel turns for a couple of second and suddenly it closes.

Likewise, all the LibreOffice applications are seeming so. When I open them, it just opens and welcome screen stands for a couple of seconds and suddenly closes.

I tried to overcome these issues by using these codes.

sudo rm /var/lib/apt/lists/* -vf
sudo apt-get autoclean
sudo apt-get update

And tried many codes. But nothing responds.

Hope my packages are crashed. So please anyone help me to overcome this issue Thank you

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Tried rebooting into recovery and clicking fix filesystem that usually does the job for me. If not try reinstalling ubuntu if you want to backup your apps to a flash drive and reinstall in your fresh install. Do this cd /var/cache/apt/archives Than sudo cp *.deb /home/user/apps
Than copy that apps file to your flash drive or burn it to a cd. Than reinstall ubuntu etc than cd into your apps directory and run sudo dpkg -i *.deb

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